Contact, written by Carl Sagan, is a classic science fiction novel that delves into the realm of alien diplomatic relations. The story revolves around a scientist named Ellie Arroway who discovers a mysterious signal from an extraterrestrial civilization. As humanity tries to decipher the message and establish contact, Arroway finds herself at the center of a global diplomatic effort. Sagan's book combines scientific accuracy with philosophical musings, exploring the challenges and implications of interstellar communication. Contact is a thought-provoking and intellectually stimulating read for fans of alien diplomacy in science fiction.